ELM 3-825 LED Standoff Equivalent & Substitute Parts

Part Overview

The ELM 3-825 is a T1 3/4 LED standoff manufactured by Bivar Inc., featuring a black PVC construction with a 0.825" (20.96mm) vertical mounting height. This component is classified as an active product with full ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts become necessary when inventory availability is limited, supply chain constraints exist, or when equivalent specifications meet design requirements within acceptable mechanical and electrical tolerances.

Substiute Parts

ELM 3-825

Bivar Inc.In Stock: 950ELM 3-825 Datasheet

Current PartRFQ

ELM 1-820

Bivar Inc.In Stock: 2082ELM 1-820 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELM 3-825 is determined by strict alignment of the following critical parameters: LED type (T1 3/4), material composition (black PVC), color (black), RoHS compliance status (ROHS3), and moisture sensitivity level (MSL 1). The ELM 1-820 qualifies as a parametric equivalent based on matching LED type, material, color, and compliance certifications. The primary distinction between the main part and substitute is the mechanical length specification: the ELM 3-825 measures 0.825" (20.96mm) while the ELM 1-820 measures 0.820" (20.83mm), representing a 0.005" (0.13mm) dimensional variance. This minimal tolerance difference of approximately 0.61% permits functional interchangeability in applications where mounting height tolerances accommodate the slight reduction.

Parameter Comparison

Engineering Selection Recommendations

Both the ELM 3-825 and ELM 1-820 maintain active product status with identical ROHS3 compliance and MSL 1 certifications, establishing them as equivalent from a regulatory and environmental perspective. The ELM 3-825 is the primary specification when the 0.825" (20.96mm) mounting height is a critical design requirement. The ELM 1-820 is an acceptable substitute when the design specification accommodates the 0.005" (0.13mm) shorter mounting height of the ELM 1-820. Selection between these parts should be based on documented design tolerances and circuit board layout constraints. Both parts are sourced from the same manufacturer, ensuring consistency in material composition, mechanical properties, and quality standards.

Frequently Asked Questions (FAQ)

Q: What is the primary difference between ELM 3-825 and ELM 1-820? A: The parts are identical in LED type, material, color, and compliance status. The distinguishing parameter is the vertical mounting height: ELM 3-825 is 0.825" (20.96mm) while ELM 1-820 is 0.820" (20.83mm), a difference of 0.005" (0.13mm).

Q: Can ELM 1-820 be used as a direct replacement for ELM 3-825? A: The ELM 1-820 qualifies as a parametric equivalent for applications where the design tolerance permits a 0.005" (0.13mm) reduction in standoff height. Verification against the printed circuit board layout and mechanical clearance requirements is necessary.

Q: Are both parts RoHS compliant? A: Yes, both the ELM 3-825 and ELM 1-820 are ROHS3 compliant and carry MSL 1 (unlimited) moisture sensitivity rating.

Q: What packaging format is used for these LED standoffs? A: Both parts are supplied in bag packaging format.

Q: Are both parts currently in production? A: Yes, both the ELM 3-825 and ELM 1-820 maintain active product status with Bivar Inc.